22053447 has 12 divisors (see below), whose sum is σ = 34305544. Its totient is φ = 13571280.

The previous prime is 22053439. The next prime is 22053463. The reversal of 22053447 is 74435022.

It is not a de Polignac number, because 22053447 - 2³ = 22053439 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22053447.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22053407) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 94129 + ... + 94362.

Almost surely, 2^22053447 is an apocalyptic number.

22053447 is a deficient number, since it is larger than the sum of its proper divisors (12252097).

22053447 is a wasteful number, since it uses less digits than its factorization.

22053447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188510 (or 188507 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 27.

The square root of 22053447 is about 4696.1097729930. The cubic root of 22053447 is about 280.4306595548.

Adding to 22053447 its reverse (74435022), we get a palindrome (96488469).

It can be divided in two parts, 22053 and 447, that added together give a square (22500 = 150²).

The spelling of 22053447 in words is "twenty-two million, fifty-three thousand, four hundred forty-seven".